diff options
| -rw-r--r-- | debianutils/run_parts.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/debianutils/run_parts.c b/debianutils/run_parts.c index 585a4b58f..f528c88ff 100644 --- a/debianutils/run_parts.c +++ b/debianutils/run_parts.c @@ -113,13 +113,24 @@ enum { }; /* Is this a valid filename (upper/lower alpha, digits, - * underscores, and hyphens only?) + * underscores, hyphens, and non-leading dots only?) */ static bool invalid_name(const char *c) { c = bb_basename(c); - while (*c && (isalnum(*c) || *c == '_' || *c == '-')) + if (*c == '.') + return *c; + + /* Debian run-parts 4.8.3, manpage: + * "...the names must consist entirely of ASCII letters, + * ASCII digits, ASCII underscores, and ASCII minus-hyphens. + * However, the name must not begin with a period." + * The last sentence is a giveaway that something is fishy + * (why mention leading dot if dots are not allowed anyway?). + * Yes, you guessed it right: in fact non-leading dots ARE allowed. + */ + while (isalnum(*c) || *c == '_' || *c == '-' || *c == '.') c++; return *c; /* TRUE (!0) if terminating NUL is not reached */ |